</varlistentry>
     </variablelist>
    </listitem>
   </varlistentry>

   <varlistentry id="protocol-message-formats-CommandComplete">
    <term>CommandComplete (B)</term>
    <listitem>
     <variablelist>
      <varlistentry>
       <term>Byte1('C')</term>
       <listitem>
        <para>
         Identifies the message as a command-completed response.
        </para>
       </listitem>
      </varlistentry>

      <varlistentry>
       <term>Int32</term>
       <listitem>
        <para>
         Length of message contents in bytes, including self.
        </para>
       </listitem>
      </varlistentry>

      <varlistentry>
       <term>String</term>
       <listitem>
       <para>
        The command tag.  This is usually a single
        word that identifies which SQL command was completed.
       </para>

       <para>
        For an <command>INSERT</command> command, the tag is
        <literal>INSERT <replaceable>oid</replaceable>
        <replaceable>rows</replaceable></literal>, where
        <replaceable>rows</replaceable> is the number of rows
        inserted. <replaceable>oid</replaceable> used to be the object ID
        of the inserted row if <replaceable>rows</replaceable> was 1
        and the target table had OIDs, but OIDs system columns are
        not supported anymore; therefore <replaceable>oid</replaceable>
        is always 0.
       </para>

       <para>
        For a <command>DELETE</command> command, the tag is
        <literal>DELETE <replaceable>rows</replaceable></literal> where
        <replaceable>rows</replaceable> is the number of rows deleted.
       </para>

       <para>
        For an <command>UPDATE</command> command, the tag is
        <literal>UPDATE <replaceable>rows</replaceable></literal> where
        <replaceable>rows</replaceable> is the number of rows updated.
       </para>

       <para>
        For a <command>MERGE</command> command, the tag is
        <literal>MERGE <replaceable>rows</replaceable></literal> where
        <replaceable>rows</replaceable> is the number of rows inserted,
        updated, or deleted.
       </para>

       <para>
        For a <command>SELECT</command> or <command>CREATE TABLE AS</command>
        command, the tag is <literal>SELECT <replaceable>rows</replaceable></literal>
        where <replaceable>rows</replaceable> is the number of rows retrieved.
       </para>

       <para>
        For a <command>MOVE</command> command, the tag is
        <literal>MOVE <replaceable>rows</replaceable></literal> where
        <replaceable>rows</replaceable> is the number of rows the
        cursor's position has been changed by.
       </para>

       <para>
        For a <command>FETCH</command> command, the tag is
        <literal>FETCH <replaceable>rows</replaceable></literal> where
        <replaceable>rows</replaceable> is the number of rows that
        have been retrieved from the cursor.
       </para>

       <para>
        For a <command>COPY</command> command, the tag is
        <literal>COPY <replaceable>rows</replaceable></literal> where
        <replaceable>rows</replaceable> is the number of rows copied.
        (Note: the row count appears only in
        <productname>PostgreSQL</productname> 8.2 and later.)
       </para>
       </listitem>
      </varlistentry>
     </variablelist>
    </listitem>
   </varlistentry>

   <varlistentry id="protocol-message-formats-CopyData">
    <term>CopyData (F &amp; B)</term>
    <listitem>
     <variablelist>
      <varlistentry>
       <term>Byte1('d')</term>
       <listitem>
        <para>
         Identifies the message as <command>COPY</command> data.
        </para>
       </listitem>
      </varlistentry>

      <varlistentry>
       <term>Int32</term>
       <listitem>
        <para>
         Length of message contents in bytes, including self.
        </para>
       </listitem>
      </varlistentry>

      <varlistentry>
       <term>Byte<replaceable>n</replaceable></term>
       <listitem>